Figure 6.

Left: Contribution of bias from $\Delta g_{r,n}$ and $\Delta g_{s,n}$ across all assays using each reference material. Note that, although $\Delta g_{r,n}$ and $\Delta g_{s,n}$ carry a sign in Equation (7), these show their contributions in absolute values. Right: Average residuals of the bias-corrected antibody concentrations for each lab and reference material.